Here's another spoiler option, the Carbon Creations Lip spoiler. It's the one I'm going to get. (I'll have to paint over the carbon fiber, which'll suck, but the shape of the spoiler is too good for me to pass up.) It's a lot like the NLP spoiler except the corners are more pronounced.

It's going to be released around the end of this month or next month - don't know the price. The bodywork on that car is terrible, BTW, I know. The spoiler rules, though.